Determination of density profile by using the refractive index in a linearly salt-stratified fluid: An experiment for an advanced undergraduate laboratory
This paper describes a low-cost laboratory experiment designed to demonstrate the applicability of the refractive index to study stratification in fluids. The laser refractography method was applied to a linearly vertical density profile of a salt (NaCl) stratified water column. Next, an image proce...
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| Veröffentlicht in: | American journal of physics 2022-01, Vol.90 (1), p.71-77 |
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| container_title | American journal of physics |
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| creator | Cruz-Gómez, R. C. Velázquez-Muñoz, F. A. Salcedo-Castro, J. |
| description | This paper describes a low-cost laboratory experiment designed to demonstrate the applicability of the refractive index to study stratification in fluids. The laser refractography method was applied to a linearly vertical density profile of a salt (NaCl) stratified water column. Next, an image processing procedure was performed, consisting of the binarization and edge detection of the laser beam and its subsequent second-order polynomial best fit. Quantitatively, the whole-field results compared well with the respective measured density profiles. This method allows one to obtain quantitative measurements of density profiles in stratified fluids with good accuracy, making it a suitable experimental method for laboratory demonstrations on fluids. |
| doi_str_mv | 10.1119/10.0006353 |
| format | Article |
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C.</creatorcontrib><creatorcontrib>Velázquez-Muñoz, F. A.</creatorcontrib><creatorcontrib>Salcedo-Castro, J.</creatorcontrib><title>Determination of density profile by using the refractive index in a linearly salt-stratified fluid: An experiment for an advanced undergraduate laboratory</title><title>American journal of physics</title><description>This paper describes a low-cost laboratory experiment designed to demonstrate the applicability of the refractive index to study stratification in fluids. The laser refractography method was applied to a linearly vertical density profile of a salt (NaCl) stratified water column. Next, an image processing procedure was performed, consisting of the binarization and edge detection of the laser beam and its subsequent second-order polynomial best fit. Quantitatively, the whole-field results compared well with the respective measured density profiles. This method allows one to obtain quantitative measurements of density profiles in stratified fluids with good accuracy, making it a suitable experimental method for laboratory demonstrations on fluids.</description><subject>Density</subject><subject>Experiments</subject><subject>Fluids</subject><subject>Lasers</subject><subject>Salt</subject><subject>Sodium chloride</subject><subject>Water column</subject><issn>0002-9505</issn><issn>1943-2909</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqdkM1OHDEQhK0oSNlALnmClnIDDbHH8-fcED8hEhIXOI-8dntjNNgb27NiXoWnpTfLIedcXGrr62pVMfZV8HMhhPpOyjnvZCs_sJVQjaxqxdVHtqLfulItbz-xzzk_0ajEwFfs9QoLpmcfdPExQHRgMWRfFtim6PyEsF5gzj5soPxGSOiSNsXvEHyw-EIvaJh8QJ2mBbKeSpVLIjPn0YKbZm9_wEUAfNli8s8YCriYQNOa3elgCJrJKG2StrMuCJNeR9qPaTlhR05PGb-86zF7vLl-uLyt7u5__rq8uKsMZStVZ3SLrqmNsr2SNJm1VnLd6kY4zu2Aw9BbpWqD0nS6p9R1J7pWGNsMNe-dPGbfDr6U-M-MuYxPcU6BTo5EKiGGRvZEnR4ok2LO1MO4pTw6LaPg4777vb53T_DZAc7Gl7_N_ie9i-kfctxaJ98AuUSV0w</recordid><startdate>202201</startdate><enddate>202201</enddate><creator>Cruz-Gómez, R. 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Quantitatively, the whole-field results compared well with the respective measured density profiles. This method allows one to obtain quantitative measurements of density profiles in stratified fluids with good accuracy, making it a suitable experimental method for laboratory demonstrations on fluids.</abstract><cop>Woodbury</cop><pub>American Institute of Physics</pub><doi>10.1119/10.0006353</doi><tpages>7</tpages></addata></record> |
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| ispartof | American journal of physics, 2022-01, Vol.90 (1), p.71-77 |
| issn | 0002-9505 1943-2909 |
| language | eng |
| recordid | cdi_crossref_primary_10_1119_10_0006353 |
| source | AIP Journals Complete |
| subjects | Density Experiments Fluids Lasers Salt Sodium chloride Water column |
| title | Determination of density profile by using the refractive index in a linearly salt-stratified fluid: An experiment for an advanced undergraduate laboratory |
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